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303-604

You are reviewing the Area Code (NPA/NXX) report for 303-604. Did you mean to search the SMS short code 303604?

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Examples: 206-739-5800, 206, 206-739, 48369
Raw Number303604
Basic Format303-604
NPA (Area Code)303
NXX604

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeCityState
303-604-XXXX9636QWEST CORPORATIONDENVERASDENVERCO

Business/Government Phones on the 303-604 Prefix

PhoneNameAddress
303-604-0237KVM Switches Online
303-604-072742U
303-604-0727DirectNET, Inc.
303-604-0829Williamson & Co. P.C.
303-604-1216Timberline Builders of Boulder County
303-604-9877Shine Forth Electrical Service & Repair, LLC
303-604-0007Courtyard Boulder Broomfield948 Dillon Road Louisville 80027 US
303-604-0500Papa John's3140 Vista Village Drive Erie 80516 US
303-604-0715Santiagos104 North Public Road Lafayette 80026 US
303-604-1444Boulder Valley Center for Dermatology5420 Arapahoe Avenue Boulder 80303 US
303-604-1444Boulder Valley Center for Dermatology1610 Prairie Center Parkway Brighton 80601 US
303-604-1444Boulder Valley Center for Dermatology1140 West South Boulder Road Lafayette 80026 US
303-604-2159Grease Monkey375 Waneka Parkway Lafayette 80026 US
303-604-2880724 Main Street Louisville 80027 US
303-604-2887My Good's Market520 McCaslin Boulevard Louisville 80027 US
303-604-2887Rocket520 McCaslin Boulevard Louisville 80027 US
303-604-3060King Soopers Fuel Station325 Crossing Drive Lafayette 80026 US
303-604-4374Fingerplay Studio901 Front Street Louisville 80027 US
303-604-5000Gastroenterology of the RockiesUS
303-604-5353TRU Thrift Shop5565 Arapahoe Avenue Boulder 80303 US
303-604-6004Juniper PaintsUS
303-604-6242Huntington Bank320 North US Highway 287 Lafayette 80026 US
303-604-6289Starbucks565 West South Boulder Road Lafayette 80026 US
303-604-6345Chad Thielen: Allstate Insurance609 Main St Louisville 80027 US
303-604-6351Morning Glory Cafe1377 Forest Park Circle Lafayette 80026 US
303-604-6460Mountain Ridge Dental Care2297 Highway 7 Erie 80516 US
303-604-6885Ras Kassa'sUS
303-604-9077Immaculate Conception Catholic Church715 Cabrini Drive Lafayette 80026 US
303-604-9896Abo's PizzaUS

Reports

Anonymous User from Arvada, Colorado

November 24, 2025 at 6:11 PM

303-604-3519 reported as a Robocall. Received on November 24, 2025 at 4:05 PM.

Anonymous User from Green Mountain Falls, Colorado

June 4, 2025 at 11:20 AM

303-604-4007 reported as a Robocall. Received on June 4, 2025 at 9:15 AM.

Anonymous User from Longmont, Colorado

May 5, 2025 at 5:41 PM

303-604-2417 reported as a Robocall. Received on May 5, 2025 at 3:35 PM.

Anonymous User from Longmont, Colorado

April 11, 2025 at 5:08 PM

303-604-2516 reported as a Robocall. Received on April 11, 2025 at 11:10 AM.
Call for Energy, solar, & utilities

Anonymous User from Niwot, Colorado

March 17, 2025 at 12:57 PM

303-604-8586 reported as a Robocall. Received on March 17, 2025 at 10:53 AM.

Anonymous User from Morrison, Colorado

November 6, 2024 at 7:57 PM

303-604-9382 reported as a Live Voice or Other. Received on November 1, 2024 at 1:12 PM.

Anonymous User from Lakewood, Colorado

September 16, 2024 at 4:50 PM

303-604-6379 reported as a Robocall. Received on July 1, 2024 at 7:01 AM.
Call for Medical & prescriptions

Anonymous User from , CO

July 24, 2024 at 5:45 PM

303-604-4081 reported as a unwanted call. Received on July 17, 2024 at 2:48 PM.

Anonymous User from , CO

July 17, 2024 at 9:46 AM

303-604-4081 reported as a unwanted call. Received on July 8, 2024 at 6:39 PM.

Anonymous User from , CO

July 8, 2024 at 3:27 PM

303-604-0467 reported as a Live Voice or Other. Received on July 8, 2024 at 1:10 PM.

Anonymous User from Aurora, Colorado

June 13, 2024 at 4:59 PM

303-604-0491 reported as a Robocall. Received on June 13, 2024 at 12:48 PM.

Anonymous User from , CO

March 21, 2024 at 4:42 PM

303-604-0597 reported as a Robocall. Received on March 21, 2024 at 10:37 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CO

March 19, 2024 at 5:43 PM

303-604-9869 reported as a Live Voice or Other. Received on March 19, 2024 at 3:31 PM.

Anonymous User from , CO

February 20, 2024 at 8:18 PM

303-604-4086 reported as a Live Voice or Other. Received on February 20, 2024 at 5:55 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Longmont, Colorado

August 21, 2023 at 8:00 PM

303-604-6708 reported as a Robocall. Received on August 21, 2023 at 4:53 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Longmont, Colorado

August 8, 2023 at 4:31 PM

303-604-7840 reported as a Robocall. Received on August 8, 2023 at 2:16 PM.
Call for Medical & prescriptions

Anonymous User from Longmont, Colorado

August 7, 2023 at 3:37 PM

303-604-7580 reported as a Robocall. Received on August 7, 2023 at 1:33 PM.
Call for Medical & prescriptions

Anonymous User from Longmont, Colorado

July 20, 2023 at 6:31 PM

303-604-1596 reported as a Robocall. Received on July 20, 2023 at 3:38 PM.
Call for Medical & prescriptions

Anonymous User from , CO

June 28, 2023 at 8:23 AM

303-604-6650 reported as a Robocall. Received on June 22, 2023 at 7:01 PM.
Call for Dropped call or no message

Anonymous User from Longmont, Colorado

May 23, 2023 at 5:02 PM

303-604-4802 reported as a Robocall. Received on May 23, 2023 at 11:55 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Houston, Texas

May 18, 2023 at 2:16 PM

303-604-0188 reported as a Live Voice or Other. Received on May 18, 2023 at 1:15 PM.

Anonymous User from Thornton, Colorado

May 2, 2023 at 6:27 PM

303-604-4056 reported as a Robocall. Received on May 2, 2023 at 11:44 AM.

Anonymous User from Denver, Colorado

May 2, 2023 at 2:28 PM

303-604-4056 reported as a Live Voice or Other. Received on May 2, 2023 at 12:19 PM.

Anonymous User from , CO

April 30, 2023 at 8:20 AM

303-604-4074 reported as a Live Voice or Other. Received on April 27, 2023 at 10:56 AM.
Call for Dropped call or no message

Anonymous User from , CO

April 30, 2023 at 8:18 AM

303-604-4073 reported as a Live Voice or Other. Received on April 26, 2023 at 5:28 PM.
Call for Dropped call or no message

Anonymous User from , CO

April 30, 2023 at 8:14 AM

303-604-4062 reported as a Live Voice or Other. Received on April 25, 2023 at 12:52 PM.
Call for Dropped call or no message

Anonymous User from , CO

April 30, 2023 at 8:12 AM

303-604-4017 reported as a Live Voice or Other. Received on April 24, 2023 at 4:30 PM.
Call for Dropped call or no message

Anonymous User from , CO

April 30, 2023 at 8:07 AM

303-604-4074 reported as a Live Voice or Other. Received on April 27, 2023 at 10:05 AM.
Call for Dropped call or no message

Anonymous User from , CO

April 30, 2023 at 8:06 AM

303-604-4073 reported as a Live Voice or Other. Received on April 26, 2023 at 4:42 PM.
Call for Dropped call or no message

Anonymous User from Denver, Colorado

April 27, 2023 at 5:56 PM

303-604-4074 reported as a Live Voice or Other. Received on April 27, 2023 at 12:19 PM.

Anonymous User from Hawthorne, NJ

April 27, 2023 at 4:02 PM

303-604-4074 reported as a Live Voice. Received on April 27, 2023 at 11:55 AM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CO

April 27, 2023 at 12:59 PM

303-604-4074 reported as a Robocall. Received on April 27, 2023 at 10:37 AM.
Call for Dropped call or no message

Anonymous User from Hawthorne, NJ

April 25, 2023 at 7:11 PM

303-604-4062 reported as a Live Voice. Received on April 25, 2023 at 2:42 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Littleton, California

April 22, 2023 at 11:49 AM

303-604-4013 reported as a Robocall. Received on April 21, 2023 at 5:18 PM.
Call for No Subject Provided

Anonymous User from Denver, Colorado

April 21, 2023 at 6:58 PM

303-604-4008 reported as a Robocall. Received on April 21, 2023 at 11:38 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Littleton, Colorado

March 23, 2023 at 3:30 PM

303-604-0690 reported as a Robocall. Received on March 23, 2023 at 1:07 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Longmont, Colorado

August 19, 2022 at 1:48 PM

303-604-2895 reported as a Robocall. Received on August 19, 2022 at 11:36 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CO

March 18, 2015 at 6:35 PM

reported as a Live Voice. Received on March 18, 2015 at 11:03 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 303-604-2233
Contacted via Wired

Most 'popular' numbers on this prefix:

303-604-0XXX: 303-604-0000 | 303-604-0001 | 303-604-0003 | 303-604-0070 | 303-604-0071 | 303-604-0077 | 303-604-0180 | 303-604-0181 | 303-604-0188 | 303-604-0230 | 303-604-0236 | 303-604-0238 | 303-604-0247 | 303-604-0248 | 303-604-0402 | 303-604-0403 | 303-604-0406 | 303-604-0492 | 303-604-0493 | 303-604-0497 | 303-604-0502 | 303-604-0506 | 303-604-0552 | 303-604-0597 | 303-604-0598 | 303-604-0599 | 303-604-0609 | 303-604-0616 | 303-604-0626 | 303-604-0690 | 303-604-0695 | 303-604-0699 | 303-604-0711 | 303-604-0712 | 303-604-0716 | 303-604-0724 | 303-604-0771 | 303-604-0773 | 303-604-0802 | 303-604-0806 | 303-604-0808 | 303-604-0822 | 303-604-0828 | 303-604-0829 |
303-604-1XXX: 303-604-1212 | 303-604-1214 | 303-604-1215 | 303-604-1234 | 303-604-1247 | 303-604-1262 | 303-604-1400 | 303-604-1409 | 303-604-1431 | 303-604-1440 | 303-604-1441 | 303-604-1447 | 303-604-1547 | 303-604-1562 | 303-604-1583 | 303-604-1591 | 303-604-1596 | 303-604-1599 | 303-604-1600 | 303-604-1633 | 303-604-1634 | 303-604-1638 | 303-604-1647 | 303-604-1662 |
303-604-2XXX: 303-604-2187 | 303-604-2188 | 303-604-2189 | 303-604-2196 | 303-604-2198 | 303-604-2200 | 303-604-2230 | 303-604-2233 | 303-604-2236 | 303-604-2262 | 303-604-2300 | 303-604-2345 | 303-604-2360 | 303-604-2362 | 303-604-2369 | 303-604-2600 | 303-604-2610 | 303-604-2611 | 303-604-2614 | 303-604-2661 | 303-604-2668 | 303-604-2800 | 303-604-2882 | 303-604-2883 | 303-604-2887 | 303-604-2888 |
303-604-3XXX: 303-604-3000 | 303-604-3030 | 303-604-3060 | 303-604-3065 | 303-604-3068 | 303-604-3228 | 303-604-3258 | 303-604-3281 | 303-604-3283 | 303-604-3288 | 303-604-3900 | 303-604-3902 | 303-604-3906 | 303-604-3998 |
303-604-4XXX: 303-604-4000 | 303-604-4030 | 303-604-4070 | 303-604-4075 | 303-604-4077 | 303-604-4240 | 303-604-4241 | 303-604-4242 | 303-604-4247 | 303-604-4343 | 303-604-4349 | 303-604-4372 | 303-604-4375 | 303-604-4377 | 303-604-4800 | 303-604-4803 | 303-604-4807 | 303-604-4887 | 303-604-4888 | 303-604-4889 |
303-604-5XXX: 303-604-5000 | 303-604-5001 | 303-604-5008 | 303-604-5120 | 303-604-5123 | 303-604-5125 | 303-604-5500 | 303-604-5540 | 303-604-5545 | 303-604-5547 | 303-604-5555 | 303-604-5566 | 303-604-5850 | 303-604-5855 | 303-604-5858 | 303-604-5882 | 303-604-5883 | 303-604-5887 |
303-604-6XXX: 303-604-6000 | 303-604-6006 | 303-604-6009 | 303-604-6060 | 303-604-6248 | 303-604-6258 | 303-604-6277 | 303-604-6280 | 303-604-6281 | 303-604-6288 | 303-604-6361 | 303-604-6363 | 303-604-6369 | 303-604-6500 | 303-604-6542 | 303-604-6544 | 303-604-6547 | 303-604-6577 | 303-604-6600 | 303-604-6608 | 303-604-6609 | 303-604-6651 | 303-604-6655 | 303-604-6659 | 303-604-6700 | 303-604-6701 | 303-604-6707 | 303-604-6880 | 303-604-6882 | 303-604-6887 | 303-604-6888 | 303-604-6889 |
303-604-7XXX: 303-604-7500 | 303-604-7577 | 303-604-7580 | 303-604-7583 | 303-604-7589 | 303-604-7840 | 303-604-7847 | 303-604-7848 | 303-604-7883 | 303-604-7887 | 303-604-7889 |
303-604-8XXX: 303-604-8000 | 303-604-8008 | 303-604-8009 | 303-604-8500 | 303-604-8556 | 303-604-8559 | 303-604-8581 | 303-604-8583 | 303-604-8585 |
303-604-9XXX: 303-604-9380 | 303-604-9383 | 303-604-9385 | 303-604-9393 | 303-604-9452 | 303-604-9453 | 303-604-9454 | 303-604-9493 | 303-604-9494 | 303-604-9496 | 303-604-9860 | 303-604-9862 | 303-604-9869 |